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    Surface Erosion and Sedimentation Associated with Forest Land Use in Interior Alaska

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    IWR_99.pdf
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    Author
    Aldrich, James W.
    Johnson, Ronald A.
    Keyword
    sheet-rill erosion
    landscape manipulation
    permafrost
    forested areas
    ground cover
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/1468
    Abstract
    The magnitude of sheet-rill erosion associated with various landscape manipulations is presented. The Universal Soil Loss Equation's usefulness for predicting annual sheet-rill erosion within interior Alaska is confirmed. Investigations of sheet-rill erosion indicate that removing the trees from forested areas with only minor ground cover disturbance did not increase erosion. Removing the ground cover, however, increased erosion 18 times above that on forested areas. Erosion is substantially reduced when disturbed areas are covered with straw mulch and fertilizer. Comparison of the actual erosion and the quantity of erosion predicted with the Universal Soil Loss Equation indicates that the equation overestimates annual erosion by an average of 21 percent. It overestimates individual storm erosion by an average of 174 percent. Data are also presented concerning sheet-rill erosion in a permafrost trail, distribution of the rainfall erosion index, and suggested cover and management factor values.
    Description
    Completion report
    Date
    1979-05
    Publisher
    University of Alaska, Institute of Water Resources
    Type
    Technical Report
    Collections
    WERC Publications

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